Supermount Version:This small filter is inserted into the sensor side of the Supermount during internal GoPro Supermount installation. Simply push the filter in with a clean cloth or non-marring tool making sure both sides are free of dust and smudges.

m12 Version:This small filter is inserted into the sensor side of a m12 lens mount. You will need to unscrew the lens mount from the sensor to install if you have a lens already installed. If you don't have a lens, simply drop it down the m12 lens mount barrel. Make sure to use a clean cloth and clean the filter before insertion, making sure both sides are free of dust and smudges.